/usr/include/vdk2/vdk/vdkprops.h is in libvdk2-dev 2.4.0-5.4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* ===========================
* VDK Visual Development Kit
* Version 0.4
* October 1998
* ===========================
*
* Copyright (C) 1998, Mario Motta
* Developed by Mario Motta <mmotta@guest.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-130
*/
#ifndef VDKPROPS_H
#define VDKPROPS_H
#include <vdk/vdkstring.h>
#include <vdk/vdkfont.h>
#include <cstdio>
#ifdef USE_SIGCPLUSPLUS
# include <vdk/sigc_addon.h>
#endif // USE_SIGCPLUSPLUS
#define __rwproperty(ownerClass,propertyType) \
VDKReadWriteValueProp<ownerClass, propertyType>
#define __rproperty(ownerClass,propertyType) \
VDKReadOnlyValueProp<ownerClass, propertyType>
#ifdef NULL
#undef NULL
#define NULL 0x0000
#endif
#define PFREAD_NULL (PFRead) 0x0000
#define PFWRITE_NULL (PFWrite) 0x0000
//==================================================
/*
read/write values property
*/
template <class T, typename S>
class VDKReadWriteValueProp
#ifdef USE_SIGCPLUSPLUS
: public SigC::Object
#endif
{
// checked out because confuse some compiler
//friend class T;
protected:
typedef S (T::* PFRead)(void);
typedef void (T::*PFWrite)(S);
VDKString name;
T* object;
S (T::* get)(void);
void (T::*set)(S);
S value;
VDKReadWriteValueProp(VDKReadWriteValueProp& p) { }
void operator=(VDKReadWriteValueProp& p) { }
public:
VDKReadWriteValueProp():
name(""),
object(NULL),
get(NULL /*PFREAD_NULL*/),
set(NULL /*PFWRITE_NULL*/)
{ }
VDKReadWriteValueProp(
const char* name,
T* object,
S defValue,
void (T::*write)(S) = NULL,//PFWRITE_NULL,
S (T::*read)(void) = NULL //PFREAD_NULL
):
name(name),object(object),
get(read),set(write),
value(defValue)
{ }
virtual ~VDKReadWriteValueProp() {}
// raw setting (functor)
// caution using it in read only props breaks
// data hiding and can lead in ugly errors.
// user: use it at your own risk.
virtual void operator()(S val)
{
value = val;
#ifdef USE_SIGCPLUSPLUS
OnValueChanged.emit(object, value);
#endif
}
// setting prop value operator
virtual void operator = (S val)
{
if(set && object)
((*object).*set)(val);
value = val;
#ifdef USE_SIGCPLUSPLUS
OnValueChanged.emit(object, value);
#endif
}
// getting prop value operator
virtual operator S()const
{
if(get && object)
// return (*((const_cast<VDKReadWriteValueProp<T,S>*>(this))->object).*get)();
return ((*object).*get)();
else
return value;
}
char* Name() { return name; }
S Value()const { return value; }
#ifdef USE_SIGCPLUSPLUS
DualSignal1<void, T*,S> OnValueChanged;
#endif
};
/*
read only values property
*/
template <class T, class S>
class VDKReadOnlyValueProp: public VDKReadWriteValueProp<T,S>
{
void operator = (S) { }
public:
VDKReadOnlyValueProp():VDKReadWriteValueProp<T,S>() { }
VDKReadOnlyValueProp(
const char* name,
T* object,
S defValue,
S (T::*read)(void) = NULL, //PFREAD_NULL,
void (T::*write)(S) = NULL //PFWRITE_NULL
):
VDKReadWriteValueProp<T,S>(
name,
object,
defValue,
write,
read) { }
virtual ~VDKReadOnlyValueProp() {}
};
#endif
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